Update pyproject.toml with additional metadata

pyproject.toml

@@ -1,20 +1,21 @@
 [build-system]
-requires = [ "hatchling",]
+requires = [ "hatchling"]
 build-backend = "hatchling.build"
 
 [project]
 name = "tempcache"
 version = "0.0.7"
+readme = "README.md"
+license = { text = "MIT License" }
 requires-python = ">=3.8"
 description = "Python library to cache data and function results in temporary files"
 keywords = ["caching", "tempfiles"]
 authors = [ {"name" = "furechan", "email" = "furechan@xsmail.com"} ]
 urls = { "homepage" = "https://github.com/furechan/tempcache" }
-readme = "README.md"
-license = { text = "MIT License" }
 classifiers = [
     "Programming Language :: Python :: 3",
-    "License :: OSI Approved :: MIT License"
+    "License :: OSI Approved :: MIT License",
+    "Operating System :: OS Independent"
 ]
 
 [project.optional-dependencies]
@@ -31,5 +32,5 @@ allow-publish = true
 
 [tool.pytest.ini_options]
 addopts = [ "-p no:cacheprovider"]
-testpaths = ["tests",]
+testpaths = ["tests"]